SQUARE D QO340 Miniature Circuit Breaker, 40A, 3 Pole, 120/240VAC, 10KA, Plug In Mount

Item: AA9GHF
Model: QO340
Cross Ref: 1D326
403 In Stock.

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$153.35
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$138.02 /unit (ex. VAT)
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Specifications

Item Plug In Circuit Breaker
Ac Voltage Rating 120/240V AC
Air @ 120v Ac 10 kA
Air @ 240vac 10 kA
Air @ 48v Dc 5 kA
Ambient Rating 104°F
Amps 40A
Amps Rating 40A
Circuit Breaker Actuator Paddle
Circuit Breaker Mounting Style Plug In
Circuit Breaker Type Standard
Compatible Panelboard/load Center Series Series QO
Dc Voltage 48V DC
Dc Voltage Rating 48V
Depth 2.9" , 2.91"
Electrical Connection Box Lugs
For Use With QO Load Centers And NQ Panelboards
Frame Size 100A, QO
Height 3"
Interrupt Rating 10 kA @ 120/240V AC, 10 kA @ 240V AC, 10 kA @ 120V AC
Length 3"
Max. Air Rating 10 kA At 120/240V AC
Max. Operating Temp. 104°F
Max. Wire Size 2 AWG
Min. Operating Temp. 77°F
Min. Wire Size 8 AWG
Mounting Type Plug In
No. Of Panel Spaces 3
No. Of Poles 3
Number Of Poles 3
Number Of Spaces 3
Phase Three
Ratings HACR Rated
Returnability Yes
Temp. Rating 140°F
Terminal Connection Lug
Terminal Connection Type Screw Clamp
Tightening Torque 44.3 lbf.-in.
Type Standard
Use With QO Series
Voltage Rating 120/240V AC
Width 2 1/4" , 2.2"
Wire Size 8 AWG , 8 AWG to 2 AWG
Standards HACR, UL LISTED
Warranty 18 Months

Product Details

Square D QO340 plug-in circuit breaker is used in NQ panelboards and QO load centres. It does not require DIN rail or bolts for installation process and can effectively interrupt current flow upon detecting low-level faults within the circuit. This circuit breaker is linked to the power supply through bus bars, removing the necessity for wire pigtail connections and aiding in the organisation of the panelboard or load centre.

Shipping Information

Height (cm) 5.84
Length (cm) 8.64
Width (cm) 8.13
HS Code 8536200040
Country Of Origin MX
Weight (kg) 0.36

Working Mechanism

  • This circuit breaker is easily mounted into compatible panelboards or load centres.
  • It is then connected to power supply through bus bars, eliminating pigtail connections.
  • The circuit breaker then constantly monitors circuit current and triggers when fault or overload occurs.
  • It then contacts rapidly open to interrupt current flow and is manually reset for temporary faults.

Features

  • This 3-pole circuit breaker has a DC voltage rating of 48VDC.
  • It has an interrupt capacity of 10kAIC at 120 / 240VAC.
  • This circuit breaker offers plug-in mounting for easy installation in hard-to-reach areas.
  • It is equipped with a paddle actuator, allowing for convenient manual operation.
  • This circuit breaker is integrated with a lug connection terminal for safe and secure operation.

Compatible Accessories

  • Square D QO Series Load Centres: These load centres find common application across commercial and industrial settings for the distribution of electrical current. They work in conjunction with the brand's QO series circuit breakers to ensure protection against overcurrents and short circuits within electrical systems.

Documentation

Certifications

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Frequently Asked Questions

Does Raptor Supplies offer similar Square D circuit breakers with different amperage ratings?

Yes, Raptor Supplies offers Square D QO350, QO360 and QO310 circuit breakers having same voltage rating of 240VAC but with different amperage rating of 50, 60 and 10A, respectively.

What safety precautions should I take while choosing a plug-in circuit breaker?

  • Check compatibility with your electrical panel.
  • Match the breaker's current rating to your circuit's load.
  • Ensure proper voltage rating for your electrical system.
  • Choose the right type: standard, AFCI, GFCI or combination.

How do I maintain this plug-in circuit breaker?

  • Regularly inspect for signs of wear or damage.
  • Clean away dust and debris to ensure proper connections.
  • Tighten any loose connections if identified.
  • Check for overheating or unusual smells during operation.
  • Test the breaker's functionality periodically.
  • Replace if malfunctioning or damaged beyond repair.

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